/*
 * Copyright (c) 2013, SRI International
 * All rights reserved.
 * Licensed under the The BSD 3-Clause License;
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at:
 * 
 * http://opensource.org/licenses/BSD-3-Clause
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 
 * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 * 
 * Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 * 
 * Neither the name of the aic-web-praise nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 
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 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package com.sri.ai.lpitools.gwtgui.client.components.treepanels;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.Vector;

import com.google.gwt.user.cellview.client.CellTree;
import com.google.gwt.user.client.ui.ScrollPanel;
import com.sri.ai.lpitools.gwtgui.client.components.treeutil.JustificationCellTreeModel;



/**
 * This panel holds the justification from a query.
 * @author Dylan
 *
 */
public class JustificationTreePanel extends ScrollPanel{
	private CellTree justificationTree;
	private boolean firstTime = true;
	private HashMap<String, ArrayList<Vector<String>>> nodeLookup = new HashMap<String, ArrayList<Vector<String>>>();
	private String clientID;
	
	public JustificationTreePanel() {
		super();
	}
	
	/**
	 * Adds a node to the data model, will be reflected next time tree is loaded.
	 * @param node the Vector storing the node's data.
	 * It should be of the form:
	 * 0: Node ID
	 * 1: Node type, used to select color
	 * 2: Whether node is a leaf or not, parsed to boolean by renderers.
	 * 3: Node text
	 */
	public void addNode(Vector<String> node) {
		//get parent ID
		String parentID = node.get(0).substring(0,node.get(0).lastIndexOf('.'));
		//add node to tree
		if(nodeLookup.get(parentID) == null) {
			nodeLookup.put(parentID, new ArrayList<Vector<String>>());
		}
		nodeLookup.get(parentID).add(node);
	}
	
	/**
	 * Re-renders the tree.
	 */
	public void renderTree() {
		if(firstTime) {
			firstTime = false;
		} else {
			this.remove(justificationTree);
		}
		justificationTree = JustificationCellTreeModel.getTree(clientID);
		this.add(justificationTree);
	}

	public String getClientID() {
		return clientID;
	}

	public void setClientID(String clientID) {
		this.clientID = clientID;
	}

}
